An explosive atmosphere is a mixture with air, under the atmospheric conditions at the site in question (Oil and gas platform, pipes, etc.), of flammable substances in the form of gases, vapors, mists, dust or fibers in which, after ignition, combustion spreads to the entire unburned mixture.
Zone 0/20: Working area in which an explosive atmosphere is present permanently or for a prolonged period of time or frequently.
Zone 1/21: Working area in which an explosive atmosphere is likely to occur occasionally under normal operating conditions.
Zone 2/22: Working area in which an explosive atmosphere is not likely to occur in normal operation or if it does occur, will persist for short periods only.
MSM equipment can operate in zones 1 and 2 providing the highest safety for aids to navigation systems to operate in explosive atmospheres. MSM guarantees quality and durability in all its equipment.